Novel solvent free liquid-phase oxidation of β-pinene over heterogeneous catalysts based on Fe_3−xM_xO₄ (M=Co and Mn)

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• 作者：Menini ; Luciano ; da Silva ; Má ; rcio J. ; Lelis ; Maria F.F. ; Fabris ; José ; D. ; Lago ; Rochel M. ; et. al.
• 关键词：β ; -Pinene ; Heterogeneous catalysts ; Mixed iron oxides ; Oxidation
• 刊名：Applied Catalysis A: General
• 出版年：2004
• 出版时间：August 18, 2004
• 年：2004
• 卷：269
• 期：1-2
• 页码：117-121
• 全文大小：325 K

文摘

The present work describes a novel oxidation of β-pinene, with either dioxygen or hydrogen peroxide, over heterogeneous catalysts based on magnetite doped with Co or Mn, of general formula Fe_3−xM_xO₄ (M=Mn, Co; x=0–0.75) under solvent free conditions. In this process, β-pinene is converted to the products valuable for perfume and flavor industries, i.e. pinocarveol, pinocarvone, myrtenol and myrtenal, in excellent selectivity of up to 95 % . The total concentration of these derivatives in the final mixture reaches 25–30wt. % . The catalysts undergo no metal leaching and can be easily recovered either magnetically or by filtration and reused several times.